Electrical heating apparatus for permanently waving hair.



E. F. SUTER. ELECTRICAL HEATING APPARAIUS FOR PERMANENTLY WAVING HAIR.

-. APPLICATION FILED AUG-6. 1917.

1,266,879. I V Patented May 21,1918.

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' being EUGENE rmcors some, 03 LONDON, ENGLAND. I

T a nnncrnrcer. HEATING arranarus roe rERMAnEnrLY wavme Ham.

Specification of Letters Patent.

' Patented May 21, 1918.

Application filed August 6, i917. Serialo. 184,765.

To all whom it may concern:

Be itv known that I, EuenNn FRANQOIS residing at London, England, havev SUTER, invented certain new and useful Improveinents in Electrical Heating Apparatus for Permanently Waving Hair, of which the following is a specification.

Myinvention relates to an improvedelectrical heater for use in dressing natural hair on the head, so as to permanently wave the same; For this purpose the hair is done up into tightly wound coilson a suitable curler, damped with a borax or other preferred solution or preparation and inclosed in stifi' paper tubes; -ajtu'bular electric heater then applied to the same. -As however the hair is coarser and moreabundant near the roots, that portion requires to be heated for a longer period than toward the tips,*where the hair is finer andby excessive heat, thus rendering it "impossible to obtain perfect-results by uni- I axially by employed.

independent heaters 'or heating form 1y heating the .hair throughout its length, as practised with the heaters hitherto My 'nvention; has for its object to provide an. improved be appliedgto-Jand distributed overthe different parts7of the coiled hair as required.

To eifect this according to my invention an electrical heating apparatus for such'purposes comprises two or more which are'connected to and controlled by a suitable switch so that such independent heaters or sectionsmay be cut into of out of circuit as required, independently of the other or others. 1 The inde endent heaters or heating sections are 0 the-usual tubular construction, and are spaced apart and arranged comeans of struts or the like," to preventheat passing from one heater to the other. The. switch, whereby the-operation of such independent heaters is controlled, is preferably of a tubular form and disposed co-axiallywith and separated from the heaters by struts or the like,.so as to avoid the heating of euch switchwhen-the in similar reference numerals indicate corres onding parts. a

igure '1, is an external view, and' easily inelectrical heater constructed and ai'ranged so that the heat can present sections venient form of electrical heating apparatus I 2,. a longitudinal sectional view'of a conadapted for use in permanentlywaving I hair, ade in accordance with my present invention. l v Fig. 3, is asectional view on the line A-A,Fig.-2. Fig. 4, is. an end view of the switch shown in Figs. 1 and 2, with ,the cover plate removed, and partly ,in section to show the construction, while Fig. -5,' is .a' diagram illustrating the electrical connectionsiof the Independent heaters and switch, shown in thepreceding views. e y

1 and 2, indicate the independent electrical heaters or' heating sections, and 3, the

switch. Such heaters and switch are ar-' ranged co-axially, and are separated" and secured in position by the tubular struts 4 and 5, respectively, which struts form air gaps as illustrated, to prevent heat" passing from one heater to the other, heaterv 2, to the switch.

Eachof the heaters 1 and 2, is of the usual tubular construction, and comprises a tubuwith a-heat1ng resistance 6, that is insulated from the inner walls of its casing by a layer or the I lar casing, equipped in any suitable manner rial 8, to prevent heat escaping to the outside of the casin The switch3, is tubular'in form and may- As shown the r block ,.9, of

be of any suitable design switch comprisesv a tu ula ebonite. or the like, whichis furnished with insulated cover plates 10, secured thereto in any convenient manner, and carries a fixed contact 11, and a pivoted contact 12,'that workson the pin 12, and carries an operating lever 12?, the block 9, being also per forated so as to afford ways for the conductors, as indicated at 13, Fig.' 4. e

In the construction illustrated, the heater 1, isconnected directly to the flexible main 7 leads lflsecured in the switch 3, by the conductors 15, 15, see Fig. 5, while the heater '2, is connected. in' parallel through the switch 3, by the conductors 16, such conduc-. tors being led to the heaters through the adjacent struts 4 and 5,;from which they are suitably insulated.-

toward the roots, and is brought 'into use The heater 1,. is arrangedat the forward I when the main leads 14, are connected by a plug, or other convement means, not indicated in the drawings, wlth a suitable source .,of current, while the heater 2, remains out of use until the switch 3, is-closed. The heater 2, is arranged so as to apply heat to the finer parts of the hair more remote from the roots, and can be cut into and out of operation as often as required, by means of the switch 3, quite independently of the heater 1.

Such improved electrical heating apparatus may be conveniently suspended ready for use, from a counterweighted cord that works over a suitable pulley, and is attached ment, can be controlled as required, so that all risk of injuring the hair by overheating one part in order to efl'ectively treatthe other, is avoided. My. improved apparatus is-also very effective for re-waving permanently waved hair, of which only the new growth near the roots requires treatment, for which purpose the front heater 1, is used alone.

naeaeae I claim as new and desire to secure by Letters Patentz" 1. In electrical heating apparatus adapted for use in permanently waving hair, a plural-ity of independent tubular vheaters arranged along a common axis so as to be heat insulated from each other, and in combination with a switch whereby one of'such heaters may be put into and out of operation independently.

2. An electrical heating apparatus adapted for use in permanently waving hair, comprising a plurality of independent tubular heaters and a tubular switch spaced apart and arranged co-axially by means of struts and-having electrical connections arranged so that one of said heaters may be independently put into and out of operation.

3., An electrical heating apparatus adaptedfor use in permanently waving hair comprising two independent tubularheaters and a tubular switch spaced apart and arranged coaxially by hollow struts, electrical, connections forming a main circuit adapted for connection to a source of current and also a sub-circuit controlled by said switch so that one of said heaters can be independently put into or out. of operation as required.

EUGENE FRANQOIS sures. 

